The Shrimps' stopper, 35, has signed up for his 10th season with the club after moving from Chesterfield in 2008.
Boss Jim Bentley is happy to see his experienced stopper sign on the dotted line.
He said: "Barry had another excellent season last year and is a big member of the squad.
"It is good to know that we have good competition now with Dan Nizic doing well when he was called upon last season and that is good for any club.
"Barry is a good influence around the place and is making his name as a good coach too and we hope he will be here for a few years to come yet.''
Roche, who has made 399 league and cup starts for the Shrimps and is just six games away from his 500th overall League start, added: "I'm over the moon to have signed on for another 12 months and immensely proud to be going into my 10th year at such a fantastic club.''